Answer:
(8m+24n) is our final answer.
Step-by-step explanation:
Given:
(m+3n)8 ...
We have to simplify this.
Applying distributive property of multiplication:
Distributive property:
When a number is multiplied by a sum of two numbers then we will multiply 'the number' first with the number inside the parentheses then add it and again multiply 'the number' with the next number.
So,
⇒
Our final answer is (8m+24n).
It's a ray because it has a point and one line that goes on in a direction.
error in summing terms in x
x + 3x + 5x = 180 ( collect like terms on left )
9x = 180 ← ( 9x not 8x )
divide both sides by 9
x = 20